The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2012
Filed:
Apr. 27, 2011
Mehdi Abolhassani, Austin, TX (US);
Thomas Keister, Georgetown, TX (US);
Alex Skorcz, Cedar Park, TX (US);
Enrique Ledezma, Austin, TX (US);
Ryan Edwards, Round Rock, TX (US);
Mehdi Abolhassani, Austin, TX (US);
Thomas Keister, Georgetown, TX (US);
Alex Skorcz, Cedar Park, TX (US);
Enrique Ledezma, Austin, TX (US);
Ryan Edwards, Round Rock, TX (US);
TECO-Westinghouse Motor Company, Round Rock, TX (US);
Abstract
In one embodiment, the present invention includes a medium voltage drive system having multiple power cells each to couple between a transformer and a load. A first subset of the power cells are configured to provide power to the load and to perform partial regeneration from the load, and a second subset of the power cells are configured to provide power to the load but not perform partial regeneration. A controller may be included in the system to simultaneously control a DC bus voltage of at least one of the first subset of the power cells, correct a power factor of the system, and provide harmonic current compensation for the system.